Kawasaki FB460v Surge

Discussion in 'Mechanic and Repair' started by cm_tibbs, Jun 2, 2007.

  1. cm_tibbs

    cm_tibbs LawnSite Member
    from 67901
    Posts: 6

    Just bought a Ariens w/Kaw 460v. Runs great without the air cleaner. As soon as you screw the air cleaner downs it starts surging. I cleaned the vent hole beside the vent tube and that didn't help. Any ideas? Thanks
     
  2. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,024

    Is that a new air filter you are installing ? I have seen filters that appeared to look ok but were in-fact partly clogged.
     
  3. cm_tibbs

    cm_tibbs LawnSite Member
    from 67901
    Posts: 6

    No the filter isn't new. It does look clean. When the blade is engaged and I am mowing is seems to do good. If I kick out the blade it starts running rich and surging. I will get a new filter and try it. Thanks!
     
  4. MowerMedic77

    MowerMedic77 LawnSite Bronze Member
    Posts: 1,164

    Sounds like debris in the idle air circuit side of the carb, I would give it a good tear down and clean out with carb spray and compressed air.
     
  5. cm_tibbs

    cm_tibbs LawnSite Member
    from 67901
    Posts: 6

    Thanks! I'll give that a try too.
     
  6. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,024

    If you do find trash in the carb clean the tank and flush the fuel line also then replace the fuel filter.
     
  7. cm_tibbs

    cm_tibbs LawnSite Member
    from 67901
    Posts: 6

    Thanks! Will do.
     
  8. Mark in MD

    Mark in MD LawnSite Senior Member
    Posts: 322

    It may be that you have an aftermarket air filter. They look just like genuine Kaw air filters, but they don't last. They clog up in no time and you have to replace them. I'd replace it with a genuine Kaw air filter.
     
  9. heritage

    heritage LawnSite Bronze Member
    Posts: 1,258

    Hi Tibbs,

    I had this very same problem some time ago w/460. EXACT same symptoms.

    You have a Bad/Leaky INTAKE VALVE. You can either change the valve and polish the seat w/ lapping coumpound OR Cut a 2" wide opening in the base of the air filter houseing, just behind the stock 1/8" air slot. Put the cover on and engage the blades.....SMOOTH :)

    This one drove me nuts for weeks before I got this one :)

    Pete D.
     
  10. cm_tibbs

    cm_tibbs LawnSite Member
    from 67901
    Posts: 6

    Fantastic! Everyone has been a great help. Thanks,Tibbs
     

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